Travel

Experiments provide proof of how traveling in groups protects insects

Few events involving animals are more dramatic than when they band together and head out on the march cross-country. Among examples are the many thousands of wildebeests and other hoofed mammals that form herds and migrate across the African plains. and young locusts also sometimes unite with their...

Experiments provide proof of how traveling in groups protects insects

Few events involving animals are more dramatic than when they band together and head out on the march cross-country. Among examples are the many thousands of wildebeests and other hoofed mammals that form herds and migrate across the African plains. and young locusts also sometimes unite with their...

Norovirus found to cause traveler's diarrhea

A majority of traveler's diarrhea cases among U.S. travelers to Mexico and Guatemala were attributed to Norovirus, a common cause of nonbacterial gastroenteritis outbreaks usually associated with developed countries, according to a new study by researchers at the Johns Hopkins Bloomberg School of Public Health and other institutions. The researchers also found that the longer travelers stayed at...

Researchers develop new method for studying 'mental time travel'

Neuroscientists at Princeton University have developed a new way of tracking people's mental state as they think back to previous events -- a process that has been described as "mental time travel." The findings, detailed in the Dec. 23 issue of Science, will aid efforts to learn more about how people mine the recesses of memory and could have a wide-ranging impact in the field of neurosci...

Travelers can avoid jet lag by resetting their body clocks

A simple, at-home treatment -- a single light box and the over-the-counter drug melatonin -- allows travelers to avoid jet lag by resetting their circadian body clock before crossing several time zones, according to new research being published in The Endocrine Society's Journal of Clinical Endocrinology and Metabolism. This treatment can also help those with delayed sleep phase syndrome (DSPS),...

Drug resistance may travel same path as quorum sensing

The cellular "pumps" associated with multi-drug resistance in bacteria may also be involved in exporting signals responsible for cell-cell communication, a process known as quorum sensing, said researchers from Baylor College of Medicine in a report that appears online today in the Proceedings of the National Academy of Sciences. "We believe that the drugs exported by these pumps may actua...

Air travel and pandemic flu

Restricting air travel from countries where there is a serious influenza outbreak will do little to hold back the spread of the infection, according to the findings of a study conducted at the UK Health Protection Agency and published in the journal PLoS Medicine. Sometimes a new type of influeza virus appears that causes an illness that is more serious than is usually the case for flu. T...

Air travel and flu: Post-9/11 restrictions delayed start of season

The onset of the flu season in the USA has been shown to be influenced by air travel. After flights were restricted following the 9/11 terrorist attacks in 2001, the flu season started about two weeks later than usual. In both the northern and southern hemispheres, influenza epidemics occur annually during the winter flu season. Given the concerns about global epidemics of serious strains...

Some butterflies travel farther, reproduce faster

Researchers have uncovered physiological differences among female Glanville fritillary butterflies that allows some to move away from their birth place and establish new colonies. These venturesome butterflies are stronger fliers and reproduce more quickly compared to their less mobile female relatives. The study is a window to how genetic differences influence behavior and how the environ...

Proteins important in Alzheimer's, Parkinson's disease travel in the slow lane

Using a novel video-imaging system, researchers at the University of Pennsylvania School of Medicine have been able to observe proteins important in Alzheimer’s and Parkinson’s disease moving along axons, extensions of nerve cells that carry proteins away from the cell body. Understanding this process of axonal transport is important for studying many neurodegenerative diseases. The study appeare...